165906 20260116002211.0 doi 10.1088/1361-6463/abb489 sideral 120360 ART-2020-120360 eng Sanz Felipe, Ángel (orcid)0000-0002-2464-5626 Application of a paramagnetic gas theory to describe the magneto-optical response in ferrofluids 2020 The magneto-optical response in ferrofluids depends significantly on the orientation and intensity of an applied magnetic field. However, such essential dependence is far from being properly described by a model based on fundamental laws. In this work, the model proposed by Elmore as an extension of the Langevin theory of a paramagnetic gas is checked. Considering the ferrofluid as an ideal paramagnetic gas is not realistic, so some modifications to the model are proposed. The modified Elmore's model adequately fits the experimental results obtained at different magnetic field intensities and orientations for the two different wavelengths used. Transmission relaxation evolution after magnetic field switch-off is also provided by the model. In addition, the results for magnetic fields parallel to the light beam are in good agreement. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-17R info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 3.207 2020 PHYSICS, APPLIED 58 / 160 = 0.363 2020 Q2 T2 0.856 2020 Acoustics and Ultrasonics 2020 Q1 Surfaces, Coatings and Films 2020 Q1 Electronic, Optical and Magnetic Materials 2020 Q1 Condensed Matter Physics 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Martín Alonso, Juan Carlos Universidad de Zaragoza (orcid)0000-0002-8738-753X 2002 247 Universidad de Zaragoza Dpto. Física Aplicada Área Electromagnetismo 53 (2020), 495106 [8 pp.] J. phys., D. Appl. phys., JPhysD JOURNAL OF PHYSICS D-APPLIED PHYSICS 0022-3727 735254 http://zaguan.unizar.es/record/165906/files/texto_completo.pdf Postprint 1319674 http://zaguan.unizar.es/record/165906/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:165906 articulos driver 2026-01-15-21:56:18 ARTICLE